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NYSE · CIK 0001921963

ATMU Atmus Filtration Technologies Inc.

Insider trading from SEC Form 4. Last filing Mar 3, 2026. Close $42.81 on Oct 9, 2026, +1% from the 52-week low and -35% from the high.

Last 90 days

Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
12
with a Form 4 at this company

Price and insider trades, last year

ATMUOct 9, 2026 · close 42.81

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at Atmus Filtration Technologies Inc., scored.

ScoreInsiderValueHoldingsPrice contextFiled
10WeakDiego Donoso
director
buy
$1,812
40 shares
+0%-
15WeakDiego Donoso
director
sell
$2,488
60 shares
-1%-

Transactions

The last 41 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Feb 27, 2026Charles Masters
Senior Vice President
FTax withholding
Common Stock
-9,046$64.53$584k44,470Mar 3, 2026
Feb 27, 2026Jack Kienzler
Chief Financial Officer
FTax withholding
Common Stock
-16,266$64.53$1.0M79,624Mar 3, 2026
Feb 27, 2026Renee Swan
Chief People Officer
FTax withholding
Common Stock
-9,570$64.53$618k53,603Mar 3, 2026
Feb 27, 2026Stephanie Disher
Chief Executive Officer
FTax withholding
Common Stock
-66,639$64.53$4.3M373,038Mar 3, 2026
Feb 27, 2026Stephanie Disher
Chief Executive Officer
FTax withholding
Common Stock
-15,854$64.53$1.0M357,184Mar 3, 2026
Feb 27, 2026Charles Masters
Senior Vice President
FTax withholding
Common Stock
-2,131$64.53$138k42,339Mar 3, 2026
Feb 27, 2026Jack Kienzler
Chief Financial Officer
FTax withholding
Common Stock
-3,851$64.53$249k75,773Mar 3, 2026
Feb 27, 2026Renee Swan
Chief People Officer
FTax withholding
Common Stock
-2,254$64.53$145k51,349Mar 3, 2026
Feb 13, 2026Stephanie Disher
Chief Executive Officer
AGrant or award
Common Stock
+169,209$0.00$0439,677Feb 17, 2026
Feb 13, 2026Charles Masters
Senior Vice President
AGrant or award
Common Stock
+21,152$0.00$053,516Feb 17, 2026
Feb 13, 2026Jack Kienzler
Chief Financial Officer
AGrant or award
Common Stock
+41,094$0.00$095,890Feb 17, 2026
Feb 13, 2026Renee Swan
Chief People Officer
AGrant or award
Common Stock
+18,536$0.00$063,173Feb 17, 2026
Feb 5, 2026Heath Sharp
director
AGrant or award
Common Stock
+614$0.00$03,114Feb 9, 2026
Apr 2, 2025Diego Donoso
director
SOpen-market sale
Common Stock
-40$37.79$1,5129,038Nov 19, 2025
Aug 13, 2025Diego Donoso
director
POpen-market purchase
Common Stock
+25$45.00$1,1259,063Nov 19, 2025
Sep 5, 2025Diego Donoso
director
POpen-market purchase
Common Stock
+15$45.81$6879,078Nov 19, 2025
Nov 13, 2025Diego Donoso
director
SOpen-market sale
Common Stock
-20$48.84$9779,058Nov 19, 2025
Nov 18, 2025Diego Donoso
director
JOther
Common Stock
+20$0.00$09,078Nov 19, 2025
Oct 3, 2025Charles Masters
Senior Vice President
FTax withholding
Common Stock
-28$44.50$1,24632,364Oct 7, 2025
Oct 3, 2025Jack Kienzler
Chief Financial Officer
FTax withholding
Common Stock
-25$44.50$1,11354,796Oct 7, 2025
Aug 14, 2025Renee Swan
Chief People Officer
FTax withholding
Common Stock
-5,007$45.18$226k44,637Aug 15, 2025
May 20, 2025Stuart A Taylor II
director
AGrant or award
Common Stock
+3,886$0.00$09,078May 21, 2025
May 20, 2025Roy Edwin Bennett
director
AGrant or award
Common Stock
+3,886$0.00$016,701May 21, 2025
May 20, 2025Diego Donoso
director
AGrant or award
Common Stock
+3,886$0.00$09,078May 21, 2025
May 20, 2025Jane A Leipold
director
AGrant or award
Common Stock
+3,886$0.00$017,919May 21, 2025
May 20, 2025Stephen E. Macadam
director
AGrant or award
Common Stock
+3,886$0.00$035,969May 21, 2025
May 20, 2025Gretchen R Haggerty
director
AGrant or award
Common Stock
+3,886$0.00$023,768May 21, 2025
May 13, 2025Laura Heltebran
CLO & Corp Sec
AGrant or award
Common Stock
+20,444$0.00$020,444May 13, 2025
Apr 1, 2025Stephanie Disher
Chief Executive Officer
AGrant or award
Common Stock
+40,021$0.00$0270,468Apr 3, 2025
Apr 1, 2025Jack Kienzler
Chief Financial Officer
AGrant or award
Common Stock
+6,804$0.00$054,821Apr 3, 2025
Apr 1, 2025Charles Masters
Senior Vice President
AGrant or award
Common Stock
+4,402$0.00$032,392Apr 3, 2025
Apr 1, 2025Renee Swan
Chief People Officer
AGrant or award
Common Stock
+2,802$0.00$049,644Apr 3, 2025
Mar 3, 2025Stephanie Disher
Chief Executive Officer
FTax withholding
Common Stock
-2,715$39.80$108k232,910Mar 5, 2025
Mar 3, 2025Charles Masters
Senior Vice President
FTax withholding
Common Stock
-736$39.80$29k28,560Mar 5, 2025
Mar 3, 2025Jack Kienzler
Chief Financial Officer
FTax withholding
Common Stock
-456$39.80$18k48,400Mar 5, 2025
Mar 3, 2025Jack Kienzler
Chief Financial Officer
FTax withholding
Common Stock
-383$39.80$15k48,017Mar 5, 2025
Mar 3, 2025Stephanie Disher
Chief Executive Officer
FTax withholding
Common Stock
-2,463$39.80$98k230,447Mar 5, 2025
Mar 3, 2025Charles Masters
Senior Vice President
FTax withholding
Common Stock
-570$39.80$23k27,990Mar 5, 2025
Feb 17, 2025Jack Kienzler
Chief Financial Officer
AGrant or award
Common Stock
+1,535$0.00$048,856Feb 19, 2025
Feb 17, 2025Charles Masters
Senior Vice President
AGrant or award
Common Stock
+2,252$0.00$029,296Feb 19, 2025
Feb 17, 2025Stephanie Disher
Chief Executive Officer
AGrant or award
Common Stock
+11,003$0.00$0235,625Feb 19, 2025

Insiders

Everyone who has filed a Form 4 here.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

ATMU insider trading: Atmus Filtration Technologies Inc. | InsiderTell